B58 Catless Downpipe 4.5-Inch Stainless Steel

PERFORMANCE Series: Maximize Power & Sound for the B58 Engine

Unleash the full fury of your BMW B58 3.0L engine with the Performance Series 4.5-Inch Catless Downpipe. This is the definitive upgrade for maximizing exhaust flow, turbo spool, and sound aggression on any tuned B58. Designed for maximum power, the massive 4.5-inch diameter tubing reduces back pressure to an absolute minimum, making it an essential component for high-horsepower builds.

 Maximum Flow 4.5-Inch Diameter Engineered for ultimate performance, this downpipe features the largest possible diameter, ensuring minimal restriction for high boost and high horsepower applications.

• Zero Restriction: The catless design eliminates the factory catalytic converter bottleneck, providing instant power gains and torque delivery across the RPM range.

• Enhanced Turbo Sounds: Expect a louder, more distinct turbo whistle and wastegate flutter.

• Deeper Tone: Provides the aggressive, resonant sound that enthusiasts demand from a high-performance BMW engine.

Vehicle Compatibility:

This downpipe is compatible with a wide range of B58 3.0L models (F-Series and select early G-Series)

• BMW 2 Series: M240i (F22/F23)

• BMW 3 Series: M340i (G20), 340i (F30)

• BMW 4 Series: M440i (G22/G23), 440i (F32)

• BMW 5 Series: 540i (G30/F10)

• BMW 7 Series: 740i (G11/G12)

• Toyota Supra: A90

IMPORTANT NOTE: This product is sold for off-road or track use only. Installation of a catless downpipe requires ECU tuning to prevent a check engine light (CEL).